@article { author = {Sadrnejad, S. A.}, title = {Hydrodynamics Induced Vibration to Trash Racks (TECHNICAL NOTE)}, journal = {International Journal of Engineering}, volume = {15}, number = {4}, pages = {357-368}, year = {2002}, publisher = {Materials and Energy Research Center}, issn = {1025-2495}, eissn = {1735-9244}, doi = {}, abstract = {In conventional power plants trash-racks are provided at the intakes to protect the turbines. In pumped storage plants, the draft tube or tailrace must also have trash-racks to protect the units while pumping. Because the loads believed to cause many failures of trash-racks are dynamic in nature, it is important to understand the dynamic characteristics of trash-rack structures in general and a single rack in particular. The classical added-mass solution structure-fluid dynamic interaction is known as an approximate solution procedure. An accurate added-mass approach mixed with implementation in finite element framework is proposed. In this proposal, experimental conclusions, supported by theory, led to presentation of more accurate results in vibration of trash-racks. This numerical solution as a powerful method to solve such a complex problem can be employed to carry out dynamic characteristics of these structures while vibrating in water.}, keywords = {Trash,racks,Natural frequency,Numerical Solution}, url = {https://www.ije.ir/article_71397.html}, eprint = {https://www.ije.ir/article_71397_561c05e520a6eac31c360ad481db246d.pdf} }